Add subprocess GPR API

Port fling_test to it.

This will be used to:
- port remaining tests to Windows
- enable testing what happens when servers or clients mysteriously disappear

2 files changed, 53 insertions, 0 deletions

diff --git a/include/grpc/support/port_platform.h b/include/grpc/support/port_platform.h
index df7861c7b6..a695acf205 100644
--- a/include/grpc/support/port_platform.h
+++ b/include/grpc/support/port_platform.h
@@ -77,6 +77,7 @@
 #define GPR_POSIX_ENV 1
 #define GPR_POSIX_FILE 1
 #define GPR_POSIX_STRING 1
+#define GPR_POSIX_SUBPROCESS 1
 #define GPR_POSIX_SYNC 1
 #define GPR_POSIX_TIME 1
 #define GPR_GETPID_IN_UNISTD_H 1
@@ -122,6 +123,7 @@
 #endif
 #define GPR_POSIX_FILE 1
 #define GPR_POSIX_STRING 1
+#define GPR_POSIX_SUBPROCESS 1
 #define GPR_POSIX_SYNC 1
 #define GPR_POSIX_TIME 1
 #define GPR_GETPID_IN_UNISTD_H 1
@@ -154,6 +156,7 @@
 #define GPR_POSIX_ENV 1
 #define GPR_POSIX_FILE 1
 #define GPR_POSIX_STRING 1
+#define GPR_POSIX_SUBPROCESS 1
 #define GPR_POSIX_SYNC 1
 #define GPR_POSIX_TIME 1
 #define GPR_GETPID_IN_UNISTD_H 1
@@ -180,6 +183,7 @@
 #define GPR_POSIX_ENV 1
 #define GPR_POSIX_FILE 1
 #define GPR_POSIX_STRING 1
+#define GPR_POSIX_SUBPROCESS 1
 #define GPR_POSIX_SYNC 1
 #define GPR_POSIX_TIME 1
 #define GPR_GETPID_IN_UNISTD_H 1
diff --git a/include/grpc/support/subprocess.h b/include/grpc/support/subprocess.h
new file mode 100644
index 0000000000..c59751da83
--- /dev/null
+++ b/include/grpc/support/subprocess.h
@@ -0,0 +1,49 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef GRPC_SUPPORT_SUBPROCESS_H
+#define GRPC_SUPPORT_SUBPROCESS_H
+
+typedef struct gpr_subprocess gpr_subprocess;
+
+/* .exe on windows, empty on unices */
+char *gpr_subprocess_binary_extension();
+
+gpr_subprocess *gpr_subprocess_create(int argc, char **argv);
+/* if subprocess has not been joined, kill it */
+void gpr_subprocess_destroy(gpr_subprocess *p);
+/* returns exit status; can be called at most once */
+int gpr_subprocess_join(gpr_subprocess *p);
+void gpr_subprocess_interrupt(gpr_subprocess *p);
+
+#endif